CONFIDENTIAL (1) A programmed daily ttilization rate of 4:00 hours for the C~5h adreraft ond 1:05 hours for the RB=5O aircroft wos estaglishod in OPLAN 1-58, The actual commitments for the C-Sh edrereft, hovever, ware too low to enable achievement of this rate. Task Group 7,4) csteblished a policy of requiring backeup circreft end readiness stctus for detonation pertic te potion, This forced non-utilization during periods of daystomday detonation postponements, ‘When this participation permitted, coordinstion for schedule ing wes effected with Documentary Photo Elemmt, Test 5asc Unit, Test Servicc Unit, and Task Group 7.1. Although this coordination wes complicated, it worked in c sstisfactory mannor, (2) ‘Fifty (50) missions were flown to off~atoll sites (Bikins, Kwajelein, Truk, Nauru, Tarawa, Johnston, Guam and Majuro) on island BEST AVAILABLE COPY resupply requirements, ad. RB-5O, 7131, was eqvipped at Eniwetok for technical photo- graphy in connection with U,S, Navy requirements, With tiis equipment installed, availability for other requirements lessened; only docusantary photography from the photoenavigatorts position w-s possible, RB-50OF, 7160, was used primarily for T=-11 camera photography of prcecreter and postecrater photo-mappinz,. In addition to this, the aircraft was used for photo-mapping of Jonnston Island, Eniwctok end Bi'ini Atolls, @e The C+5!: airereft perticipated in the photogran-ie coverage of ten (10) nuclear detonttions, undemmter detenstions, The RB-50 airereft particincted in two Onc RB=SO wes positioned cirectly over the blast by Me33 radar controls the othcr RB-50 tock t-rget array photo-mapning photography shortly before and shcrtly after the blest, No damge to L A I T N E EID any of the five cirercft or théir personnel occured from these detonations,. CON Ty

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